Home / 87,313.17-120,506.67-51,511.98

Finding the Fourth Proportional to 87,313.17, 120,506.67 and 51,511.98

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Solution

The fourth proportional to 87,313.17, 120,506.67 and 51,511.98 is: 71,095.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,313.17 : 120,506.67 = 51,511.98 : x
  2. Step 2: Convert to fraction form
    87,313.17/120,506.67 = 51,511.98/x
  3. Step 3: Cross multiply
    87,313.17x = 120,506.67 × 51,511.98
  4. Step 4: Simplify right side
    87,313.17x = 6,207,537,174.91
  5. Step 5: Solve for x
    x = 6,207,537,174.91/87,313.17
  6. Step 6: Final answer
    x = 71,095.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.